SpectroKit – Local Media Processing Tools

SpectroKit lets you compress, convert, cut, and record video, audio, and image files directly in your browser using WebAssembly builds of FFmpeg. Files never leave your device, which keeps sensitive media under your control while still giving you professional-grade tooling.

Highlights

• Video Lab: trim clips, extract audio tracks, remove sound, convert footage between MP4, MOV, MKV, and WebM, or generate looping GIFs.
• Audio Studio: boost or reduce volume, cut highlights, compress files to MP3 or M4A, and transcode speech or music without uploading anything.
• Image + Mixed Media: turn stills into slideshows, merge artwork with narration, and convert screenshots between PNG, JPG, and WebP.
• Recording Suite: capture webcam or microphone sessions entirely in the browser for quick updates or voice notes.

How to Use SpectroKit

Choose a tool, drop in your media, adjust quality, bitrate, or frame rate, and watch the live FFmpeg log for progress updates. When the job is done you can preview the output in the page and download it immediately—no waiting on uploads or email links.

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Enable JavaScript to load the interactive SpectroKit interface.